Maximum length scale requirement in a topology optimisation method based on NURBS hyper-surfaces
TypeArticles dans des revues avec comité de lecture
This paper deals with a new method for handling manufacturing and geometrical requirements in the framework of a general Topology Optimisation (TO) strategy. In particular, the maximum length scale constraint (MLSC) implementation is addressed in order to obtain multiple load paths or to locally limit the size of the component. The classic formulation of the MLSC is revisited in the framework of a density-based TO algorithm wherein the pseudo-density field is represented through a NURBS hyper-surface. The NURBS hyper-surface properties are exploited to effectively formulate the MLSC. The effectiveness of the proposed approach is proven on a meaningful 3D benchmark.
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COSTA, Giulio; MONTEMURRO, Marco; PAILHES, Jérôme (J.F. Silva Gomes and Shaker A. Meguid editors, 2017)In this work, the Solid Isotropic Material with Penalization (SIMP) topology optimization (TO) method is revisited and reformulated within the mathematical framework of NURBS functions. This implies several advantages: ...
On the integration of additive manufacturing constraints in the framework of a NURBS-based topology optimisation method COSTA, Giulio; MONTEMURRO, Marco; PAILHES, Jérôme (2017)This work focuses on the topology optimization (TO) of 2D structures: the Solid Isotropic Material with Penalisation (SIMP) method is revisited and reformulated within the mathematical framework of Non-Uniform Rational ...
A General Hybrid Optimization Strategy for Curve Fitting in the Non-uniform Rational Basis Spline Framework COSTA, Giulio; MONTEMURRO, Marco; PAILHES, Jérôme (Springer Science and Business Media LLC, 2017)In this paper, a general methodology to approximate sets of data points through Non-Uniform Rational Basis Spline curves is provided. The proposed approach aims at integrating and optimizing the full set of design variables ...
COSTA, Giulio; MONTEMURRO, Marco; PAILHES, Jérôme (Springer Nature, 2017)In this paper, the Solid Isotropic Material with Penalisation (SIMP) method for Topology Optimisation (TO) of 2D problems is reformulated in the Non-Uniform Rational BSpline (NURBS) framework. This choice implies several ...
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